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Electrical Cables

Electrical Cables
In capacitance grading of cables we use a _________ dielectric.

Hygroscopic
Porous
Composite
Homogeneous

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Electrical Cables
Copper as conductor for cables is used as

Hardened and tempered
Alloy with chromium
Annealed
Hard drawn

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Electrical Cables
The insulation of the cable decreases with

The increase in length of the insulation
None of the listed here
The decrease in the length of the insulation
Both of the listed here

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Electrical Cables
If the length of a cable is doubled, its capacitance

None of the listed here
Becomes one-half
Becomes double
Becomes one-fourth

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Electrical Cables
In cables the charging current

Lags the voltage by 90°
Lags the voltage by 180°
Leads the voltage by 180°
Leads the voltage by 90°

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Electrical Cables
Underground cables are laid at sufficient depth

To avoid being unearthed easily due to removal of soil
To minimize temperature stresses
To minimize the effect of shocks and vibrations due to gassing vehicles, etc.
All of the listed here

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